go-session

Claude Code JSONL transcript parser, analytics engine, and HTML timeline renderer. Parses Claude Code session files into structured event arrays (tool calls with round-trip durations, user and assistant messages), computes per-tool analytics (call counts, error rates, average and peak latency, estimated token usage), renders self-contained HTML timelines with collapsible panels and client-side search, and generates VHS tape scripts for MP4 video output. No external runtime dependencies — stdlib only.

Module: dappco.re/go/session Licence: EUPL-1.2 Language: Go 1.26

Quick Start

import (
	"fmt"

	"dappco.re/go/session"
)

sess, _, err := session.ParseTranscript("/path/to/session.jsonl")
analytics := session.Analyse(sess)
fmt.Println(session.FormatAnalytics(analytics))

// Render interactive HTML timeline
err = session.RenderHTML(sess, "timeline.html")

// Search across all sessions in a directory
results, err := session.Search("~/.claude/projects/my-project", "git commit")

Documentation

• Architecture — JSONL format, parsing pipeline, event types, analytics, HTML rendering, XSS protection
• Development Guide — prerequisites, build, test patterns, coding standards
• Project History — completed phases, known limitations, future considerations

Build & Test

go test ./...
go vet ./...
go build ./...

Licence

European Union Public Licence 1.2 — see LICENCE for details.